Electric-switch-operating apparatus.



I. L. VAN BUSKIRK. ELECTRIC SWITCH OPERATING APPARATUS APPLICATION FILEDSEPT.13,1906.

PATENTED APRIZ, 1907..

4 SHEETS SHEET 1.

PATENTED APR. 2, 1907,

I. L. VAN BUSKIRK. 150mm SWITCH OPEH ATI NG APPARATUS. APPLICATION FILEDSEPT. 13,190

4 SHEETS-SHEET 2.

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PATENTED APR. 2, 1907. I. L. VAN BUSKIRK. ELECTRIC SWITCH OPERATINGAPPAR Mus.

APPLICATION FILED SBPT.13,1906.

4 SHEETSSHEET s.'

7 0 9 l 2 R P A D E N E T A P .Nor 848,940.

ATING APPARATUS.

ELECTRIC SWITCH OPER APPLICATION FILED SEPT.13,190.6.

4 SHEETS-SHEET 4.

i UNITED STATES EATENT OFFICE:

IRA L. VAN BUSKIRK, OF LO UISVILLE, KENTUCKY.

ELECTRIC-SWITCH-OPERATENG APPARATUS.

To all whom it may concern.-

Be it known that I, IRA L. VAN BUSKIRK, a citizen of the United. States,residing at Louisville, in the county of Jefferson, State of Kentucky,have invented certain new and useful Improvements in Electric-Switch-Opcrating Apparatus; and I do hereby declare the following to be a full,clear, and exact desciiption of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame. This invention has reference to electricvide a device of thatnature which may be applied with equal facility to a switch having oneor several poles.

To these ends the invention includes in combination a switch adapted tobe engaged when in closed position by a movable dog pivoted upon -theswitchblock, an electromagnet having a link attached to the hammersecured to its armature and connecting the hammer and dog, a series ofpush-buttons.

circuited with the eleetromagnet and adapted upon depression to actuatethe hammer and disengage the dog from the switch, and a spring adaptedto throw the switch into open position upon such disengagement.

The invention further consists in the con struction and arrangement ofthe several parts, as hereinafter fully described, specifically claimed,and illustrated in the accoinpanying drawings, in which Figure 1 is aView of a building fitted with the improved switchoperating apparatus;Fig. 21s a front elevation of the apparatus, showing a single oleswitch. Fig. 3 is a side viewof Fig. 2. ig. 4 is an enlarged viewofe thelocking-dog. Fig. 5 is a front elevation of the apparatus, showing abipolar switch.

on the lines 7 7 and 8 8 of Fig. 5,

"Like parts are designated by correspondin reference-numerals in theseveral views.

eferring to the drawings, and particularly to Figs. 2, 3, and 4, the box10 carries upon its front face the switch 11, connected to the mainsupply by the wires 0 and having Specification of Letterslatent. A'iimion file September 13,1906. Serial No. 334.483.

Patented April 2, 1907.

in the present instance a single pole or blade.

12,fulcruinedin the bracketlB-and fitting in the jack 14 when in closedposition. The switch-block, to which the bracket and ack are secured, isprovided adjacent the latter with a movable L-shapttd. dog 15, having ashoulder at one end adapted to engage the outer edge of the switch-polewhen the switch is closed, the opposite end of said dog being connectedby a link 16 with a hammer 17, secured to the armature 18 of anelectromagnet 19, inclosed by a casing secured to the box side, therebeing a bell 20 located upon the box side in position to be struck uponmovement of the hammer. A push-button 21 is circuited with theelectroinagnet through the wires 1), there being a plurality ofpush-buttons located within the different rooms of the building, asshown in Fig. l, as many push buttons being used as desired. A U-shapedspring 22 is secured to the upper portion of.

the switclnplate, the arms of said spring eX- tending on opposite sidesof the switch-pole and its bight portion bearing against the in nor facethereof, the spring tending to swing the switch upwardly into openposition upon the disengagement oi" said dog therefrom. Th'e switch-isconnected to the motor 23 by the wire 0, while the battery 24, locatedwithin the box 10, is connected with the electromagnct by the wires dand with the pushbuttons by the wires 6. I it will thus be seen that bydepressing any one of the push-but tons and the consequent completion ofthe circuit the movement of the hammer 17, con- 7 nected to the armatureoi" the clectroinagnet,

the spring 22 swinging the switch upwardly into open positionimmediately upon such disengagement, thus breaking the main cirnodiiiedconstruction in which a bipolar switch 11 is used, the switchcomprising the I poles orblad'es 12, l'ulcr'unicd iii the brackets Fig.6 is a backfview of Fig. 5,'showing the -wir1ng. Figs. 7 and 8 arevertical sections dog 15, pivotally mounted in a bracket secured to theswitclnplatc and provided with a shoulder at its upper end similar tothat on the dog 15, the shoulder engaging a lip 27;

1 will 'eliect the release of the dog 15 from the i switch through themedium of the link 16,

secured to the cross-piece, when the switch is in closed position. linkis, connected at one end thereto and provided at its opposite end with ahook 29, engaged within an eye 30, formed on one end ot' a strap 31,secured to the hammer 17, attached to the armature 1S ol theelectromagnet 19, the asing of which is broken away at one corner topermit the movement ol hammer. Strap 3! is disposed at right angles tothe hammer, as shown. Theelectromagnet is connected by the wires (1 tothe battery 24-, main supply by the wires (1 and to the motor by thewires The switch, electromagnet, and cells in the present instance arecarried bya plate 32, attached in any desired manner to the wall oi. thebuilding, one of the puslnbuttons 21. being likewise secured thereto andconnected to the battery 24 and electromagnet 19 by the wires (2 and d.The plate also carries a second push-button 33, connected by the wires fand r respectively, to the battery 24 and gong 34. One of theswitch-poles is engaged by an actuating-spring 22, similar to spring 22in appearance and used for a similar purpose, while the opposite pole isengaged when the switch is swung upwardly by a spring 35, thus limitingsuch movement and preventing the switchpole from injury by contact withthe electro.

magnet-(using. Depression ol any one of the push-buttons 21 will etlcctthe release of the dog 15 from the lip 27 oi the cross-piece 25, whenthe spring 22 will operate as described in connection with thefirst-mentioned cmistruction, the spring 35 limiting the upward movementof the switch, as above stated. Owing to the quick makeand-breakconnection between the electromagnet 19 and its armature 18,the strap31, carried by the hammer 17, will be given a series of short vibrationsin rapid succession, thus ell'eeting the release oi the dog from theswiteh-lip and consequent movement of the switch, the lost motionoccasioned by the movement ol the hooked end of the link 16 within thestrap-eye insuring such release, even though the battery be to someextent run down, iniwhich ammhtionthe disengage ment of the switch isimpossible where the armature is connected directly to the dog, and aslow make-and-break connection is made use 01'. The gong 34 serves as acantion-bell and is sounded prior to closing the switch and starting themotor, it being understood that there are in actual use a plurality ofsuch gongs located in the several I rooms ol" the building or buildingsand connected in series, the depression of the pushbutton 33 soundingall of said gongs simultaneously. The electromagnet 19 is pro vided witha hell 2) in position to be by the hammer 17.

s truck Modifications and changes in construction ,l the switch is inclosed position; a link con-' while the switch is connected to the:

The dog is actuated by a i described.

may obviously be made within the scope of the claims, as the inventionis not intended to be limited to the exact details shown and It is to beunderstood, moreover, that the connection-link 16 and hammer 17 is suchas to ell'ect a rapid vibration of dog 15, similar to that of the dog15, the quick makeand-break connection being made use of.

hat is claimed is- 1. The coi'nhination, with an electric switch, of avibratory dog adapted to engage the switch when the latter is closed; anelectroinagnet, including an armature; a link connecting said armaturewith said dog; a series of push-buttons circuited with saidelectromagnet, and adapted, upon depression, to vibrate said dog torelease the same irom engagement with said switch through the linkconnection between said dog and armature; and a spring connected withsaid switch, and adapted to throw the same into open position when said.dog has been actuated.

2. The combination, with an electric switch, of a movable dog adapted toengage the switch when the latter is closed; an electromagnet includingan armature a hammer secured to said armature; a bell located adja centsaid hammer, in position to be struck thereby; a link connecting saidhammer with said dog; a series of push-lnittons circuited with saidclectromagnet, and adapted upon depression to release said dog fromengage ment with said switch; and a spring connected with said switch,and adapted to throw the same into open position when said dog h as beenactuated.

3. The combination, with an electric switch, of a vibratory dog mountedupon the switch when the latter is in closed position an eleetromagnetincluding an armature; a ham mer secured to said armature; astrapsecured to said hammer at right angles thereto, said strap having an eyeformed in its free end; a bell located adjacent said hammer in positionto be struck thereby; a link having a hook at one end for engagementwith said eye, and connected at its opposite end with said. dog; aseries o'l push-Mittens, circuited with said electroinagnet, andadapted, upon depression, to vibrate sa-id dog to releasethe same fromengagement with said switch through the link connection between said dogand armature; and a spring connected with said switch, and adapted tothrow the same into open been actuated.

4. The combination, with an electric switch, comprising spaced blades, aconnecting cross-bar, and a lip secured to the latter, of anelectromagnet including an armature; adog pivotal'ly mounted upon theswitchblock and adapted to engage said lip when position when said doghas I switch, comprising spaced blades, a connecting cross-bar, and alip secured to the latter intermediate the ends thereof; of anelectromagnet including an armature; a dog pivot- ;lly mounted upon theswitch-block between said blades, and adapted to engage said lip,

when the switch its in closed position; a hammer secured to saidarmature; means connecting said hammer and dog; a series of 20push-buttons circuited with said electromagnet, and adapted, upondepression, to

release the dog from e agement with said lip through the connectingmeans between said hammer and said dog; a spring adapted 25 to engageone ofsaid blades to swing said switch into open position; and a springadapted to contact with the opposite blade,

to limit such swinging movement.

In testimony whereof I afiix my signature 30 in presence of twowitnesses.

IRA L. VAN BUSKIRK.

Witnesses:

CHARLES B. DALL, HARRY B. DRIVER.

